CVE-2018-16150
Last modified
CVE-2018-16150 is a vulnerability of currently unknown severity. In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification does not reject excess data after the hash value. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation through fake X.509 certificates. EPSS estimates a 0.59% chance of exploitation in the next 30 days.
Description
In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification does not reject excess data after the hash value. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation through fake X.509 certificates. This is a variant of CVE-2006-4340.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Axtls Project | Axtls | <= 2.1.3 |
References
- https://github.com/igrr/axtls-8266/commit/5efe2947ab45e81d84b5f707c51d1c64be52f36cPatch, Third Party Advisory
- https://sourceforge.net/p/axtls/mailman/message/36459928/Third Party Advisory
- https://github.com/igrr/axtls-8266/commit/5efe2947ab45e81d84b5f707c51d1c64be52f36cPatch, Third Party Advisory
- https://sourceforge.net/p/axtls/mailman/message/36459928/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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